GB940305A - Catalytic reduction of aromatic mononitro compounds - Google Patents
Catalytic reduction of aromatic mononitro compoundsInfo
- Publication number
- GB940305A GB940305A GB34188/61A GB3418861A GB940305A GB 940305 A GB940305 A GB 940305A GB 34188/61 A GB34188/61 A GB 34188/61A GB 3418861 A GB3418861 A GB 3418861A GB 940305 A GB940305 A GB 940305A
- Authority
- GB
- United Kingdom
- Prior art keywords
- nitro
- reaction
- xylene
- benzene
- carried out
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 150000001875 compounds Chemical class 0.000 title abstract 2
- 125000003118 aryl group Chemical group 0.000 title 1
- 238000010531 catalytic reduction reaction Methods 0.000 title 1
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 abstract 3
- YNQLUTRBYVCPMQ-UHFFFAOYSA-N Ethylbenzene Chemical compound CCC1=CC=CC=C1 YNQLUTRBYVCPMQ-UHFFFAOYSA-N 0.000 abstract 3
- 239000003054 catalyst Substances 0.000 abstract 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 2
- 229910052739 hydrogen Inorganic materials 0.000 abstract 2
- 239000001257 hydrogen Substances 0.000 abstract 2
- 239000007791 liquid phase Substances 0.000 abstract 2
- LQNUZADURLCDLV-UHFFFAOYSA-N nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC=C1 LQNUZADURLCDLV-UHFFFAOYSA-N 0.000 abstract 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- TTYAKJRXXJZQNT-UHFFFAOYSA-N 1,2,3,4-tetramethyl-5-nitrobenzene Chemical compound CC1=CC([N+]([O-])=O)=C(C)C(C)=C1C TTYAKJRXXJZQNT-UHFFFAOYSA-N 0.000 abstract 1
- FVHAWXWFPBPFOS-UHFFFAOYSA-N 1,2-dimethyl-3-nitrobenzene Chemical class CC1=CC=CC([N+]([O-])=O)=C1C FVHAWXWFPBPFOS-UHFFFAOYSA-N 0.000 abstract 1
- HFZKOYWDLDYELC-UHFFFAOYSA-N 1,2-dimethyl-4-nitrobenzene Chemical group CC1=CC=C([N+]([O-])=O)C=C1C HFZKOYWDLDYELC-UHFFFAOYSA-N 0.000 abstract 1
- BYFNZOKBMZKTSC-UHFFFAOYSA-N 1,3-dimethyl-5-nitrobenzene Chemical group CC1=CC(C)=CC([N+]([O-])=O)=C1 BYFNZOKBMZKTSC-UHFFFAOYSA-N 0.000 abstract 1
- BSFHJMGROOFSRA-UHFFFAOYSA-N 1,4-dimethyl-2-nitrobenzene Chemical group CC1=CC=C(C)C([N+]([O-])=O)=C1 BSFHJMGROOFSRA-UHFFFAOYSA-N 0.000 abstract 1
- PLAZTCDQAHEYBI-UHFFFAOYSA-N 2-nitrotoluene Chemical compound CC1=CC=CC=C1[N+]([O-])=O PLAZTCDQAHEYBI-UHFFFAOYSA-N 0.000 abstract 1
- ZPTVNYMJQHSSEA-UHFFFAOYSA-N 4-nitrotoluene Chemical compound CC1=CC=C([N+]([O-])=O)C=C1 ZPTVNYMJQHSSEA-UHFFFAOYSA-N 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- -1 amino compound Chemical class 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 125000004432 carbon atom Chemical group C* 0.000 abstract 1
- AUHZEENZYGFFBQ-UHFFFAOYSA-N mesitylene Substances CC1=CC(C)=CC(C)=C1 AUHZEENZYGFFBQ-UHFFFAOYSA-N 0.000 abstract 1
- 150000002828 nitro derivatives Chemical class 0.000 abstract 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 abstract 1
- 150000005181 nitrobenzenes Chemical class 0.000 abstract 1
- 229910000510 noble metal Inorganic materials 0.000 abstract 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 abstract 1
- 239000000376 reactant Substances 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- 239000007858 starting material Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C209/00—Preparation of compounds containing amino groups bound to a carbon skeleton
- C07C209/30—Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of nitrogen-to-oxygen or nitrogen-to-nitrogen bonds
- C07C209/32—Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of nitrogen-to-oxygen or nitrogen-to-nitrogen bonds by reduction of nitro groups
- C07C209/36—Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of nitrogen-to-oxygen or nitrogen-to-nitrogen bonds by reduction of nitro groups by reduction of nitro groups bound to carbon atoms of six-membered aromatic rings in presence of hydrogen-containing gases and a catalyst
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
- B01J23/44—Palladium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/02—Boron or aluminium; Oxides or hydroxides thereof
- B01J21/04—Alumina
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/18—Carbon
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
Compounds of the general formula: <FORM:0940305/C2/1> wherein X is an alkyl substituent of 1 to about 18 carbon atoms and n has a value 0 to 5 are reduced in the liquid phase and in the absence of added solvent to the corresponding amino compound with hydrogen in the presence of a noble metal catalyst of the platinum group having a surface area of at least 150 sq. in./gm at 25 DEG to 125 DEG C. while maintaining the water of reaction as a well dispersed separate liquid phase in the reaction zone during the reaction. The reaction may be carried out in a batchwise manner but is preferably carried out continuously by continuously introducing the nitro compound, catalyst and hydrogen into the reaction zone, continuously withdrawing amino reduction product at a rate equal to the feed input of the reactants, and withdrawing water of reaction from the reaction zone only as amino product is withdrawn. Specified nitrobenzenes which may be used as starting material are nitrobenzene, orthonitrotoluene, para-nitrotoluene, orthonitro ethyl benzene, para-nitro ethyl benzene, the nitroxylenes e.g. 4-nitro-o-xylene, 5-nitro-m-xylene and 2-nitro-p-xylene, nitro(2)-mesitylene, 5-nitro-1,2,3,4-tetramethyl benzene and 3-nitro-1,2,4,5-tetramethy benzene. The catalyst is usually employed on a suitable carrier, e.g. carbon or alumina, in a concentration of from 0.1% to 10% by weight based on the weight of the support. The reaction may be carried out pressures from atmospheric to 150 p.s.i.g. or even higher. U.S.A. Specifications 1,111,502, 1,174,245,2,292,879 and 2,458,214 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US63968A US3093685A (en) | 1960-10-21 | 1960-10-21 | Catalytic reduction of aromatic mononitro compounds |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB940305A true GB940305A (en) | 1963-10-30 |
Family
ID=22052674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB34188/61A Expired GB940305A (en) | 1960-10-21 | 1961-09-25 | Catalytic reduction of aromatic mononitro compounds |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US3093685A (en) |
| GB (1) | GB940305A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0002308A1 (en) * | 1977-11-24 | 1979-06-13 | The Clayton Aniline Company Limited | Catalytic hydrogenation process for the manufacture of aromatic amines |
| US4400538A (en) * | 1981-06-11 | 1983-08-23 | Mobay Chemical Corporation | Fixed bed catalyst for MNB and DNT hydrogenation |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3265735A (en) * | 1964-06-15 | 1966-08-09 | Frontier Chemical Company | Manufacture of para-chloroaniline and para-aminophenol |
| US3472897A (en) * | 1966-12-22 | 1969-10-14 | Grace W R & Co | Reduction of nitrobenzene |
| US3683025A (en) * | 1969-05-06 | 1972-08-08 | Henry W Pons | Hydrogenation of nitrobenzenes |
| US9518006B2 (en) | 2013-10-08 | 2016-12-13 | Covestro Deutschland Ag | Method for producing diaminotoluene |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2619503A (en) * | 1947-09-05 | 1952-11-25 | Du Pont | Catalytic hydrogenation of dinitroaromatic compounds |
| US2772313A (en) * | 1953-08-17 | 1956-11-27 | Columbia Southern Chem Corp | Reduction of meta chloro nitrobenzene to meta chloro aniline |
| GB832153A (en) * | 1957-07-30 | 1960-04-06 | Allied Chem | Catalytic hydrogenation of the dinitro derivatives of toluene |
| GB848626A (en) * | 1958-03-15 | 1960-09-21 | Bayer Ag | Improvements in or relating to the production of aniline |
-
1960
- 1960-10-21 US US63968A patent/US3093685A/en not_active Expired - Lifetime
-
1961
- 1961-09-25 GB GB34188/61A patent/GB940305A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0002308A1 (en) * | 1977-11-24 | 1979-06-13 | The Clayton Aniline Company Limited | Catalytic hydrogenation process for the manufacture of aromatic amines |
| US4400538A (en) * | 1981-06-11 | 1983-08-23 | Mobay Chemical Corporation | Fixed bed catalyst for MNB and DNT hydrogenation |
Also Published As
| Publication number | Publication date |
|---|---|
| US3093685A (en) | 1963-06-11 |
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